You've missed the point about MySpace music (How to get music to our ears, December 14). It's because it's easy to access. I can go to the MySpace pages of bands and find out what they're up to - quickly, easily and effectively. Compare that with their "official" sites. Full of content, maybe, but overly complex and confusing. Give me MySpace, where it all follows the same pattern, but with enough personalisation to stop it being dull.Chris StevensDallas, US

· Charles Arthur writes (Has the iTunes music store passed its peak?, December 14) "After analysing thousands of credit and debit card transactions of 4,000 people (a statistically valid sample) ... " It's widely reported that the sample was derived from the credit card transactions of 7,000 consumers, of which only 181 were households that actually made a purchase from the iTunes store.

To have drawn such a sensational conclusion from such a tiny sample and then to have ignored other significant ways of purchase is misleading.Alan TaylorNewbury

· When I bought my iPod, I bought a few things from the iTunes Music Store and then promptly went back to my old routines. I found the iTunes Music Store disorganised and clunky. I'd rather buy and rip CDs than suffer the madness of the iTunes interface.dicta.fakescience.com

Password hell

I am continually surprised by the many commentaries that lament the proliferation of passwords (Technobile, December 14) while simultaneously neglecting to mention the numerous high-quality password management products available. Many of these product are open source and/or free to download and use.Richard Cleaveraccessmanager.co.uk

· It is eight in the morning and I decide to access my bank account online. I skip some long page telling me something about how Citibank online has changed and I dutifully enter my username and password. On the next page I am told that I need to select five questions, one of which I will be asked every time I log on. As I have no time to waste, I try to find a "skip" button or anything that will let me check my account. But no, Citibank demands I select my questions now otherwise I can't access my account.

In front of me are 10 badly written questions. The first reads "What is the street you grew up on?" I grew up in Australia and Greece at four different addresses, so which one do I use? Another reads: "What is the first name of your first date?" It is getting a bit personal and I really do not want to be reminded of my first date ... but then again, first date since when? I then wonder whether I can write my own question as this is my account. But no, Citibank does not trust my judgment when it comes to my online security.

The result? I chose five questions I do not remember and provided five answers I will not remember. I can call them to check my account ... but I will need an e-Pin to do so. Oh well ... Nikos KaraoulanisLondon

Not so cool for data

Would the magnetic field extend out with the fridge, interfering with such as mobile phones and wireless LANs? (A cool new idea, December 14) Would it be a risk to data on PCs?John SymeClydebank

Just eye candy

"Social software"? (Gamesblog, December 14) What's new about that? About seven years ago, I decided that my late wife's mother, a war bride, would appreciate email. I bought her a laptop, did some setting up and shipped it to her. Her other daughter, who lives in the same town, got her online and showed her how to use the browser to look at British papers.

She occasionally gets email from her grandson, from me and other friends, and she can feel connected to the home she left so many years ago. That's email and a web browser. What is "social software" other than eye candy?Mark RothChicago, US